How high are the teleprompters?

I think he has to look up to read them or else he tilts the head up to give the impression that he's looking up at the audience, while reading his speeches.
But did ya notice that the last 20-30 seconds of the speech he was looking staight ahead? A very unusual...and no doubt intentional...facial presentation. Stood out like a sore thumb...and I say good for him.
Look us straight in the eye when you talk to us!!!